Answer:
8/25
Step-by-step explanation:
2x4=8
5x5=25
=8/25
(you can't simplify this any further)
Answer:
-12.8x - 20y + 8.4
Step-by-step explanation:
To do this you just multiply everything by negative 4
so we have 3.2x*-4 + 5y*-4 - 2.1*-4
This gives us
-12.8x - 20y + 8.4
The last term is positive because we multplied a negative by another negative
Answer:
(3x^2 - 1)(3x^2 + 1)(9x^4 + 1).
Step-by-step explanation:
Using the identity for the difference of 2 squares;
a^2 - b^2 = (a - b)(a + b)
we put a^2 = 81x^8 and b^2 = 1 giving
a = 9x^4 and b = 1, so:
81x^8 − 1 = (9x^4 - 1)(9x^4 + 1)
Applying the difference of 2 squares to 9x^4 - 1:
= (3x^2 - 1)(3x^2 + 1)(9x^4 + 1).
Answer: $160
Step-by-step explanation:
You'll need to find the mark-up price first: $2400+1/3
1/3= $800
$2400+$800= $3200
$3200 is the mark-up price
Then you have to find the discount:
1/5 of $3200
$3200/5= $640
$3200-$640= $2560
Lastly, you have to find the profit:
$2560-$2400= 160
Answer:
75%
Step-by-step explanation:
3/4 of the chickens are there. 75% is the same as 3/4.
